Nullisomic is a genetic condition involving the lack of both the normal chromosomal pairs for a species (2n-2).[1] Humans with this condition will not survive.[2]

Causes

Nullisomy is caused by non-disjunction, during meiosis that causes two of the gametes to have no chromosomal material, leaving the other two gametes to have double the amount of chromosomal material (disomic). Due to the lack of genetic information, the nullisomic gametes are rendered unviable for fertilization.[3]

See also

References

  1. ↑ HAKANSSON, ARTUR (2010). "Meiosis In a Nullisomic and in an Ayndetic Godetia Whitneyi". Hereditas. 29 (1): 179–190. doi:10.1111/j.1601-5223.1943.tb02722.x.
  2. ↑ "Molecular-plant-biotechnology.info". www.molecular-plant-biotechnology.info. Archived from the original on December 19, 2007.
  3. ↑ Cunningham F, Leveno K.J., Bloom S.L., Spong C.Y., Dashe J.S., Hoffman B.L., Casey B.M., Sheffield J.S. (2013). Genetics. In Cunningham F, Leveno K.J., Bloom S.L., Spong C.Y., Dashe J.S., Hoffman B.L., Casey B.M., Sheffield J.S. (Eds), Williams Obstetrics, Twenty-Fourth Edition. Retrieved September 28, 2015 from http://accessmedicine.mhmedical.com/content.aspx?bookid=1057 Archived 2017-09-26 at the Wayback Machine
Look up nullisomic in Wiktionary, the free dictionary.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.